Tranny Oil advise on STi 6MT - Page 6

91TB78 · 02-07-2006, 05:28 PM

I hear a lot of ups and downs with different fluids for the tranny and diff. I went the safe route and bought the stock Valvoline dino tranny/front diff fluid and then ordered the subaruparts.com JDM LSD liter of fluid (synthetic).

It just wasn't worth it to me for the risk, having the redo it if things didn't work out like I liked them, and the cost of synthetic fluids vs. dino. Now, engine oil...full synthetic...

Brahmzy · 02-07-2006, 06:12 PM

Thanks, yeah, after further searching, I found the Suby LSD stuff and I'll just stick to the Valvoline 75W-90 for tranny. Smoother shifting might be nice, but at what cost down the road?

***sciolist*** · 02-21-2006, 08:45 AM

Are people really putting 4+ quarts of oil into the tranny? Mine read full with 3 quarts. Of course there's some residual oil in there.

I ran the car around the block a few times and it still reads full. Guess I'll just have to keep an eye on it, but it sure didn't look like 4 quarts came out.

**Wazazell** · 02-21-2006, 04:52 PM

did you remove both of the 2 drain plugs?

***sciolist*** · 02-22-2006, 07:18 AM

Lol, thank you. I guess it pays to take a look at the manual first.

Blaiser · 02-22-2006, 08:18 AM

Quote:

Originally Posted by BruceChapman

motul competition ff
finger licking good.

i only saw this in 75w-140? is that ok to run?

sorry for my lack of intelligence

Rev · 02-22-2006, 09:25 AM

Quote:

Originally Posted by Blaiser

i only saw this in 75w-140? is that ok to run?

sorry for my lack of intelligence

I personally think that is waaay too heavy.

91TB78 · 02-22-2006, 09:34 AM

I agree. If you can't find Motul, stick with the Valvoline OEM fluid. Seems like the best results have come from this route vs. the synthetic route.

813_05_STi · 02-22-2006, 10:02 AM

Quote:

Originally Posted by scrmblr2

I used roayl purple gear lube in the diff and the trans at about 12000. I autox, so I fugured, what the heck. Very nice and smooth, just like stock.

Same here, I had the dealer ship Swap out my Oil,Trans,Diff all with Royal Purple. Very Smooth Indeed!!

solbergfan · 02-22-2006, 12:30 PM

Quote:

Originally Posted by 813_05_STi

Same here, I had the dealer ship Swap out my Oil,Trans,Diff all with Royal Purple. Very Smooth Indeed!!

I don't think Royal Purple makes LSD oil, so you put the wrong stuff in the rear diff. You need Subaru LSD oil or Motul 90PA LSD oil (I think Silkolene makes some also). It doesn't surprise me that the dealer doesn't know what to use. They are clueless when it comes to the STi.

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02-07-2006, 05:28 PM	#51
91TB78 S204 Racer Feedback Score: 12 reviews Car: 06 IX MR Location: Minneapolis, MN Posts: 3,666 IWSTI Addict since: Mar 2002	I hear a lot of ups and downs with different fluids for the tranny and diff. I went the safe route and bought the stock Valvoline dino tranny/front diff fluid and then ordered the subaruparts.com JDM LSD liter of fluid (synthetic). It just wasn't worth it to me for the risk, having the redo it if things didn't work out like I liked them, and the cost of synthetic fluids vs. dino. Now, engine oil...full synthetic...

02-07-2006, 06:12 PM	#52
Brahmzy Spec C Club Feedback Score: 0 reviews Location: C/S,CO Posts: 1,158 IWSTI Addict since: Dec 2004	Thanks, yeah, after further searching, I found the Suby LSD stuff and I'll just stick to the Valvoline 75W-90 for tranny. Smoother shifting might be nice, but at what cost down the road?

02-21-2006, 08:45 AM	#53
*sciolist* Spiteful Old Codger Feedback Score: 1 reviews My Stuff: Subaru Parts Location: Bend, OR Posts: 2,345 IWSTI Addict since: Jul 2003	Are people really putting 4+ quarts of oil into the tranny? Mine read full with 3 quarts. Of course there's some residual oil in there. I ran the car around the block a few times and it still reads full. Guess I'll just have to keep an eye on it, but it sure didn't look like 4 quarts came out.

02-21-2006, 04:52 PM	#54
Wazazell Gold Member Feedback Score: 0 reviews Car: 2006 STi My Stuff: Subaru Parts Fav Mod: power adding stickers & emblems Location: Richmond, Virginia Posts: 956 IWSTI Addict since: Aug 2004	did you remove both of the 2 drain plugs?

02-22-2006, 07:18 AM	#55
*sciolist* Spiteful Old Codger Feedback Score: 1 reviews My Stuff: Subaru Parts Location: Bend, OR Posts: 2,345 IWSTI Addict since: Jul 2003	Lol, thank you. I guess it pays to take a look at the manual first.

02-22-2006, 09:34 AM	#58
91TB78 S204 Racer Feedback Score: 12 reviews Car: 06 IX MR Location: Minneapolis, MN Posts: 3,666 IWSTI Addict since: Mar 2002	I agree. If you can't find Motul, stick with the Valvoline OEM fluid. Seems like the best results have come from this route vs. the synthetic route.